How can I add company email as where the submission came from in notifications

Hi,

May I ask if you are referring to the Sender Email in the notifications of your form? If so, you can set SMTP on your forms, here's a detailed guide: How to Setup SMTP for a Form

Or if you are referring to customize the sender address to an email alert here's how: How to Add a Custom Sender Address to an Email Alert

I hope this helps, let us know if you need further assistance.